Answer:
(7,7)
Step-by-step explanation:
I don't know if anyone know say him answer
-1-1 or 2-4 or 3-5 or 6-8 or 7-9 or 8-10
6
6(2) = 12
12 + 9 = 21
21/3 = 7
7 - 1 = 6 <--- Number that's she's thinking
I tested every number!
-7r^2+12r-8